diff --git a/plugins/system/cpubyuser b/plugins/system/cpubyuser
index 0f7a2cc3..77d599f5 100755
--- a/plugins/system/cpubyuser
+++ b/plugins/system/cpubyuser
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Plugin to monitor CPU usage, for a selected set of users
 #